IR material Selection Guide
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Wavelength Range
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Substrate Material
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150 nm - 5.0 μm
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Sapphire
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180 nm - 8.0 μm
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Calcium Fluoride (CaF2)
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200 nm - 6.0 μm
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Magnesium Fluoride (MgF2)
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600 nm - 16 µm
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Zinc Selenide (ZnSe)
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1.2 - 8.0 μm
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Silicon (Si)
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2.0 - 16 μm
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Germanium (Ge)
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CaF2 is a cubic crystal with an excellent transmission from 130 nm to 10 m and has widespread applications as transparent windows in the ultraviolet and infrared spectra. Recently, CaF2 windows found ..